Last year, Brian had $10,000 to invest. He invested some of it in an account that paid 10% simple interest per year, and he invested the rest in an account that
paid 6% simple interest per year. After one year, he received a total of $920 in interest. How much did he invest in each account?
First account:
s

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.